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Welcome to the Cockermouth Astronomical Society website. Hopefully you'll find all the information you need about our society and astronomy in West Cumbria here. If not contact us.

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Thursday, January 4

The whole of the moon . . well not quite

Last night was a full moon, but every one is slightly different due to the distance from the earth to the moon (which changes the apparent size of the moon) and also to libration which is the 'wobble' of the moon as it travels in it's orbit. The result of that libration is that over a period we can actualy see around 59% of the moon from the Earth, the rest being 'the far side of the moon'.